日本金属学会誌

J. Japan Inst. Metals, Vol. 21, No. 4 (1957),
pp. 304-308

A Study on the Diffusion of Calcium Ion in Molten Lime-Silica-Alumina Slags by Using a Radioactive Tracer Technique

Kichizô Niwa


Abstract:

A Simple radioactive tracer technique, which had been used in the previous work(1), was improved to measure more accurately the diffusion coefficient of calcium ion in molten lime-silica-alumina slags of three kinds of compositions over the range of temperatures between 1350° and 1450°. In a slag of 43 pct CaO-39 pct SiO2-18 pct Al2O3, the activation energy of diffusion of calcium ion is calculated as 30 ± 15 kcal.


(Received 1956/12/3)

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